Production of new or improved fabrics or articles



Patented Aug.26,1930 1,773,975

UNITED STATES PATENT orrica GEORGE HOLLAND ELLIS AND RALPH JAMES MANN, OF SPONZDON, N EAR DERBY, ENG- LAND, ASSIGNOBS TO GELANESE CORPORATION OF AMERICA, A CORPORATION OF DELAWARE PRODUCTION OF N 03. IMPROVED FABRICS R ARTEOLES Ho Drawing. Application filed May 17, 1927, Serial No. 192,159, and in Great Britain June J5, .1928.

This invention relates to the production of crate the rate of loss of lustre to such an exeffects or patterns on woven, knitted or other tent as compared with the normal that the textile fabrics or articles made from or conlustre of the one portion may be practically taining cellulose acetate threads or yarns. unchanged whilst that of the other portion According to the present invention we have is so modified as to enable very distinct, sharp 50 found that excellent patterns or efiects conand clear patterns to beexecuted. The effects stituted by local difference of lustre may be in many cases are quite permanent and will produced upon woven, knitted, or other tex- Withstand treatment in the laundry as well as tile fabrics or articles made from or conordinary domestic usage. The cellulose ace- 1 taining cellulose acetate threads or yarns tate materials can of course be already dyed 55 by the local application to said fabrics or arby known methods before application of the tlcles of one or more of the following subprocess according to this invention, which stances, and by subsequently subjecting the rocess is found not to disturb or afiect the fabrics or articles to the delustring action of yeings. Alternatively it is found satisfacl5 steam or other hot or boiling aqueous media. tory to dye the materials subsequent to the 50 The substances we employ for the local appliprocess. Mixed materials of cellulose acetate cation according to the present invention are and other textile fibres may be similarly mono or poly basic carboxylic acids of the treated when the lustre of the former only aliphatic series and substituted derivatives is substantially affected so that a wide field thereof such as halogen derivatives, amino deof possible effects is opened up by use of rivatives, hydroxy derivatives; the hydroxy such materials. Furthermore, as is well derivatives being especially advanta eous. known, such materials are capable of yield- As examples of such bodies may mening differential colorings by the employment tioned 1-formic, acetic, propionic, butyric, of appropriate coloring matters for the difchloracetic, aminoacetic, glycollic, lactic, ferent components, which again adds to the m citric, succinic acids, but it is of course undergreat variety of effects producible. stood that we in nowise limit ourselves to In carrying out the process where the agent these examples. to be applied locally is soluble in Water, it

The local application may be performed by will usually be applied from aqueous soluany suitable means such for instance as lprinttion. Where it is less soluble, insufiiciently ing, stencilling and the like, and may e apsoluble or insoluble,it may be applied either plied to form any suitable desired pattern, in suspension with or Without protective colfor instance a figured design or pattern or a loids, or dispersed by any known or suitable ground or blotch which leaves a figured means such for example as the so called coldesign or pattern in relief. loidal milling or by physical methods such 39 After the local application We subject the for example as forming dispersions with the goods to the delustring treatment referably aid of known emulsifying or dispersing by subjecting them to the action of steam. agents, or by dissolving the agents of the Under given conditions of steaming'some present invention in organic solvents and of these agents are found to act in a protec pouring the solution into or diluting it with 85 tive way, that is to say, they retard the rate water in presence or absence of protective colat which cellulose acetate loses its lustre in loids. For applying by the usual methods of the steam, whilst others act in the opposite printing such solutions or dispersions will way. By use of chosen agents at suitable conusually be thickened by appropriate known centrations it is possible to decrease or accelsubstances such as starches, gums, flours and 9,9

the like, or for stenc'illing they may be applied in the form of a spray with little or no thickening. After printing or other selected mode of-application the goods are preferably dried and then subjected to the action of steam in a suitable apparatus such as the familiar ager, cottage or continuous steamer common in the textile printing in dustries, until the required effect or differential lustre is produced. The goods may then be rinsed to remove thickening and residual agent and further washed and finished as desired or requisite. \Vhile we preferably subject the goods to steaming after the local application it is of course to be understood;

thatwe may employ hot or boilingwvater,

soap solutions, solutions of: acids, or solutions of acid salts instead of steam.

The following examples serve to illustrate how the present invention may be performed, it being understood that they are in no way limitative.

Example 1 (1 5 parts by weight sodium sulpho ricmoleate (100%) or the commercial Turkey red oil.

the acid and water are mixed together and added to the starch paste at 80 '17. till dissolved. The paste is then cooled and suitably strained.

After printing, the fabric is dried quickly and steamed in moist steam for 5 minutes after which it may be rinsed, soaped, dried and finished asdesired or requisite. The printed portions in this case will have lost practically all their lustre and the unprinted ortions remain substantially unchanged.

The pattern will therefore be chosen accordingly. Emample 2 i Print a knitted fabric composed of cellulose acetate yarns, with the following paste:

20-25 parts citric acid 7 0 parts wheat starch thickening (15%) 10-5 parts water The acid and water are mixed to ether and added to the starch paste at 80 till dissolved. The paste is then cooled and suitably strained.

After printing the fabric is dried quickly and steamed in moist steam for 5 minutes after which it may be rinsed, soaped, dried and finished as desired or requisite. The

equivalent amount of,

Steam until differences of lustre are sufliciently accentuated. In this case the printed portions will substantially have retained their original lustre and the unprinted portions become delustred. The pattern will therefore be chosen accordingly. After the steaming the fabrics may be rinsed, soaped, dried and finished as desired or requisite.

Example .4.

For protection print with ill-30 parts cnlor-acetic acid parts wheat starch thickening (15%) 204) parts water Steam until difierences of lustre are sufficiently accentuated. In this case the printed portions will substantially have retained their original lustre and the unprinted portions become delustred. The pattern will therefore be chosen accordingly. After the steaming the fabrics may be rinsed, soaped, dried and finished as desired or requisite.

Ewample 5 For protection print with lO-EO parts propionic acid 70 parts Wheat starch thickening (15%) 20-0 parts water Steam until diflerences of lustre are sufliciently accentuated. In this case the printed portions will substantially have retained their original lustre and the unprinted portions become delustred. The pattern will therefore be chosen accordingly. After steaming the fabrics may be rinsed, soa'ped, dried and finished as desired or requisite.

What we claim and desire to secure by Letters Patent is 1. Process for production of pattern effects on materials comprising cellulose acetate, comprising locally applying to the materials aliphatic carbox lic acids and thereafter delustering wit hot aqueous media.

2. Process for production of pattern effects on materials comprising cellulose acetate, comprising locally applying to the materials aliphatic carboxylic acids and thereafter delustering with moist steam.

3. Process for production of pattern effects on materials comprising cellulose ace tate, comprising locally applying to the materials substituted aliphatic carboxylic acids and thereafter dclustering with hot aqueous media.

4. Process for production of pattern effects on materials comprising cellulose acetate, comprising locally applying to the materials substituted aliphatic carboxylic acids and thereaft delustering with moi-st steam. I

5. Process for th production of pattern effects on materials comprising cellulose acetatc, comprising printing the materials with pastes comprising aliphatic carboxylic acids and thereafter delustering with moist steam.

6. Process for the production of pattern elfectson materials comprising cellulose acetate, comprising printing the materials with pastes comprising aliphatic carboxylic acids and therea ter delustering with moist steam.

7. Process for the production of pattern effects on materials comprising cellulose acetate, comprising printing the materials with pastes comprising aliphatic carboxylic acids, drying and thereafter delustering with moist steam.

8. Process for the production of pattern effects on materials comprising cellulose acetate, comprising printing the materials with pastes comprising substituted aliphatic oarboxylic acids, drying and thereafter delustering with moist steam.

In testimony whereof we have hereunto subscribed our names.

GEORGE HOLLAND ELLIS. RALPH JAMES MANN, 

